Water Pump Leak Unusual

Andrew Shadow said:
Common issue.

Take care not to over-tighten the hose clamps on the radiator hoses. The radiator inlet/outlet pipes are soft and can deform if the clamps are over-tightened.
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Thanks. The radiator is out at the moment so I don't tighten them yet. I'll keep this in mind.
 
marc11 said:
Checked all the clamps. All loose, tightened them all. One was bad, it just clicked and would not tighten, replaced it and one on the lower houses by the pump was oblong, replaced it.
Ordered a new t-stat and o-ring will swap them before putting it back together.
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The OEM clamps are narrow, and if over tightened will cut into the rubber hose. Over time they tend to leak. These are the reasons why so many guys here have changed the clamps to constant tension types, or even the Gates Heat Shrink type. Many have reported no more leaks with new clamps and some have said it's not worth the trouble - just check the clamps annually and give them a little tightening twist. It is up to you.

Just be careful on the radiator spigot clamps. The metal is thin and a too tight clamp can collapse or distort the radiator pipe. I found corrosion on my 'stat housing that required cleaning with fine sandpaper (one of the large hoses). In another thread I asked what happened to that black gook mechanics smeared on spigots before sliding on the hoses. Maybe modern improvements are not such an improvement?
 
Well folks, new t-stat and o-ring and all clamps tight and it still leaks, just running out of the square hole as soon as the bike is started. I'm at a loss but so near our of patience and desire, might be easier to sell it at this point. Parts take weeks to get and when you don't know what to replace you're looking at months of trial and error.
 
Anyone have any tips or tricks to hold the o-ring in place when mating the cover to the engine? Honda used some sort of adhesive, I was thinking a touch of grease in a few spots???
 
marc11 said:
Anyone have any tips or tricks to hold the o-ring in place when mating the cover to the engine? Honda used some sort of adhesive, I was thinking a touch of grease in a few spots???
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Maybe use a few dabbs of crazy glue to hold it in place ,not much needed and easy to remove if needed .
 
dduelin said:
Take some pictures if you can.

If it's not coming from the tiny round weep hole forget about the water pump.

It kind of sounds like you are describing coolant is coming out of the drain channel that comes out a square hole on the right side of the engine. The clutch cover and water pump cover are right there. The drain outlet hole may be blocked. The drain channel comes down from the top of the engine behind the water pump cover and exits out the square hole where the water pump cover mates to the block above the water pump cover.

If so, focus on a coolant hose weep, seep, leak in the Vee or thermostat housing weep, seep, or leak above the engine. These are so common they rate a thread a week.
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Hello,I'm new to the forum and I'm experiencing the same leak,it seems to be coming from the hoses connected to oil cooler... started taking off fairing to locate the spot,but had to take off oil cooler line covering,nothing stood out as a leak potential,any suggestions?, thanks in advance
 
dduelin said:
Take some pictures if you can.

If it's not coming from the tiny round weep hole forget about the water pump.

It kind of sounds like you are describing coolant is coming out of the drain channel that comes out a square hole on the right side of the engine. The clutch cover and water pump cover are right there. The drain outlet hole may be blocked. The drain channel comes down from the top of the engine behind the water pump cover and exits out the square hole where the water pump cover mates to the block above the water pump cover.

If so, focus on a coolant hose weep, seep, leak in the Vee or thermostat housing weep, seep, or leak above the engine. These are so common they rate a thread a week.
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Hey ,thanks for the reply,it was helpful..I located a small round hole tucked behind the hoses connected to oil cooler,so my next question is, would it be possible to remove the water pump without taking the engine out? Is it enough space to remove without removing engine..thanks again
 
scrap Dee said:
Hey ,thanks for the reply,it was helpful..I located a small round hole tucked behind the hoses connected to oil cooler,so my next question is, would it be possible to remove the water pump without taking the engine out? Is it enough space to remove without removing engine..thanks again
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I’m confused. The water pump weep hole (or drain hose) is on the right side of the engine, down low near the front. The oil cooler is underneath the oil filter on the very back side of the engine. The water pump is in the right front of the engine under a cover bolted onto the block. Where is the leak considering these three separate locations?

The water pump can be removed with the engine in place.
 
dduelin said:
I’m confused. The water pump weep hole (or drain hose) is on the right side of the engine, down low near the front. The oil cooler is underneath the oil filter on the very back side of the engine. The water pump is in the right front of the engine under a cover bolted onto the block. Where is the leak considering these three separate locations?

The water pump can be removed with the engine in place.
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The coolant is coming out a small hole at the bottom of the engine,
 
dduelin said:
I’m confused. The water pump weep hole (or drain hose) is on the right side of the engine, down low near the front. The oil cooler is underneath the oil filter on the very back side of the engine. The water pump is in the right front of the engine under a cover bolted onto the block. Where is the leak considering these three separate locations?

The water pump can be removed with the engine in place.
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Today I'll make it home from work at a reasonable time,I'll send a few clicks of my situation,thanks
 
Andrew Shadow said:
Have a look through the below article to get an idea of which hole is for what. You have a 2004 so you won't have the elbow with the drain hose shown in the photos. Yours will just be a hole.

ST1300 - Water Pump Weep Holes​

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No sir,it's a bit older than that...1994 ,I looked underneath and found the hose that leads to the upper part of engine,no leaks or drainage...but the hole that's leaking is located on the bottom of engine...very small clean hole,I watched some coolant flow right out, after I removed a steel cover that was placed for heat to protect the oil cooler line
 
I’m confused, 1st post identified his bike as a 2004?
With all the advice and pictures provided by everyone trying to help, why didn’t he catch the fact all the pictures were different than his bike?
 
Igofar said:
I’m confused, 1st post identified his bike as a 2004?
With all the advice and pictures provided by everyone trying to help, why didn’t he catch the fact all the pictures were different than his bike?
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Igofar, apologies if I confused you,I happen to be looking at a thread that was talking about or similar to my issue so I asked a question,if I did write 2004, again my apologies sir, I don't get much time in my garage during the week, I drive for a living, I purchased a 1994 Honda ST -1100 two years ago and I believe the water pump is in bad shape,hey that's all I was trying to ask,if you cant , again my apologies and ill move on,good day .
 
No worries, you just might get more help and assistance if you post your questions in the ST1100 section.
Hope you figure it out and get it working correctly.
Ride safe.
 
scrap Dee said:
No sir,it's a bit older than that...1994
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That explains the confusion. Your first post in this thread stated 2004, so that had to be an ST1300. If it is an ST1100 none of my reply is of any use to you so ignore what I wrote, it is for an ST1300.

If you ask the same question in the ST1100 section you will get the information that you are looking for.
 
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